content: /*
   * Copyright 2016-present David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.rxjava3.joins;
  
  import java.util.*;
  
  /**
   * Represents an activated plan.
   */
  abstract class ActivePlan0 {
      protected final Map<JoinObserver, JoinObserver> joinObservers = new HashMap<>();
  
      protected abstract void match() throws Throwable;
  
      protected void addJoinObserver(JoinObserver joinObserver) {
          joinObservers.put(joinObserver, joinObserver);
      }
  
      protected void dequeue() {
          for (JoinObserver jo : joinObservers.values()) {
              jo.dequeue();
          }
      }
  }
  